Brake-beam hanger.



S. S. UNDERWOOD.

BRAKE BEAM HANGER.

APPLICATION nun FEB. 21, 1910.

966,141, Patented Aug. 2,1910.

v nbamtoz Gwen mg tmrran srnrrns PATENT QEFFICE.

SIDNEY SMITH UNDERW'OOD, OF MONTREAL, QUEBEC, CANADA.

BRAKE-BEAM HANGER.

eearai.

Specification of Letters Patent.

Application filed February 21, 1910.

Patented Aug. 2, 1910.

Serial No. 545,094.

,The invention has for its object to prevent the brake head and with itthe beam from becoming disengaged from the hanger in the event of thebrake shoe key being removed;

and it may be said briefly to consist of the articular construction ofthe hanger here- 1nafter described and pointed out in the claims.

For full comprehension, however, of my invention reference must be hadto the accompanying drawings, forming a part of this specification, inwhich similar reference characters indicate the same parts, and wherein-Figure 1 is a side elevation of abrake head with brake shoe in place,the brake beam being shown in transverse section, and the wholesupported by my improved hanger; Fig. 2 is a side elevation of the u perportion of the brake head and a part 0 the truck, the latter insectional view, with my improved hanger engaged therewith; Fig. 3 is aface view of the parts illustrated in Fig. 2; and Fig. 4c is a detailperspective view of my im roved hanger removed.

The rake head I), beam 0, shoe (Z, and key e for detachably fasteningthe shoe to the head are of usual construction and well known in theart, there being, of course, a pair of heads and shoes on each beam, anda pair of hangers sus ending the brake heads and throu h them t e shoesand beam. The brake hea s are fixed to the brake beam by rivets f orotherwise, and each is formed with a transverse socket 9 having alongitudinal mouth the lips whereof reduce its width to less than thediameter of the socket g in which the horizontal portion is of itshanger has heretofore been held by the key. Ihis arrangement isdefective for the reason that unauthorized persons are enabled todisengage the brake heads, shoes and beam from the hanger by simplyremoving the keys, and the same disenga ement would take lace at one orboth ends if either or both keys should happen to be displaced bybreakage. In order to overcome this defect I so construct the hangingmeans that the heads will be self held against displacement from'thehanger while the latter is attached to the truck and readily either setin place in the socket of the head or freed therefrom when the hanger isdisconnected from the truck.

The presentembodiment of my invention I consists of a one piece hangerof U-form the horizontal portion 7a whereof is in one directionsubstantially equal in thickness to the socket g, and at right anglesthereto or substantially at right angles thereto equal to the spacebetween the lips of the mouth of the socket, the cross-sectionbeingpreferably oval in form and the hanger constructed with the greaterdiameter of the horizontal portion of said hanger. The'lower ends of thelegs are substantially equal to the horizontal portion to enable them topass the lips to enter the socket endwise. This is unnecessary howeverwhere the hangers are entered sidewise. This construction permits thehorizontal portion of the hanger to be passed either longitudinally orsidewise into the socket. When the hanger is turned tov the positionshown in dotted lines in Fig. 2, the efiect being that after the partshave been so fitted and the hanger turned to its normal position andconnected to the truck, relative displacement (other than that due tothe pivotal relation) is prevented laterally to the hanger by the lips pof the socket partially inclosing the eater thickness of the horizontalportion, and longitudinally thereto by the upper section of brake headwhich is straddled by the legs. With this construction and. arrangementthe brake heads and beams are positively locked against displacementfrom the hanger while the latter is connected to the truck, and worn orbroken brake shoes may be replaced with new ones, or the shoes strippedfrom the heads by unauthorized persons, without danger of displacementof the heads and beam.

I do not claim broadly the construction whereby the hanger is permittedto enter the socket longitudinally as it is covered in Patent No.942,985 granted to me on Dec. 14, 1909.

What I claim is as follows:

1. The combination with a brake head having a transverse socket with alongitudinal mouth of less measurement transversely to the-socket thanthe diameter of the said socket, of a hanger presenting a horizontalportion equal in thickness in one direction to the dimneter of thesocket, and equal in thickness at right angles to the said direction tothe said measurement of the mouth for the purpose of permitting thehanger to enter the socket longitudinally When turned to abnormalangular position and be held therein when in normal angular position.

The combination with a brake head having a transverse socket with alongitucli nal mouth of less measurement transversely to the socket thanthe diemeter of the said socket, of a hanger presenting a horizontalportion of oval cross-section with its greatest diameter in the plane ofthe hanger.

In testimony whereof, l have signed my 15 name to this specification, inthe presence of two subscribing Witnesses.

SIDNEY Sll/HTH UNDERWUUD.

Witnesses:

WILLIAM ikilol mr, FRED J Series.

